<!DOCTYPE html>



  


<html class="theme-next mist use-motion" lang="zh-Hans">
<head>
  <meta charset="UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"/>
<meta name="theme-color" content="#222">









<meta http-equiv="Cache-Control" content="no-transform" />
<meta http-equiv="Cache-Control" content="no-siteapp" />
















  
  
  <link href="/lib/fancybox/source/jquery.fancybox.css?v=2.1.5" rel="stylesheet" type="text/css" />







<link href="/lib/font-awesome/css/font-awesome.min.css?v=4.6.2" rel="stylesheet" type="text/css" />

<link href="/css/main.css?v=5.1.4" rel="stylesheet" type="text/css" />


  <link rel="apple-touch-icon" sizes="180x180" href="/images/apple-touch-icon-next.png?v=5.1.4">


  <link rel="icon" type="image/png" sizes="32x32" href="/images/favicon-32x32-next.png?v=5.1.4">


  <link rel="icon" type="image/png" sizes="16x16" href="/images/favicon-16x16-next.png?v=5.1.4">


  <link rel="mask-icon" href="/images/logo.svg?v=5.1.4" color="#222">





  <meta name="keywords" content="Docker,学习记录,Mongo," />










<meta name="description" content="记录下需要优化的语句，数据库目前在本机256Mb内存的ubuntu虚拟机的docker中跑着 工作日志查询 工作日志查询">
<meta name="keywords" content="Docker,学习记录,Mongo">
<meta property="og:type" content="article">
<meta property="og:title" content="mongo原生查询记录优化之路">
<meta property="og:url" content="http://yoursite.com/2018/09/16/mongo原生查询记录/index.html">
<meta property="og:site_name" content="Anke&#39;s Technology">
<meta property="og:description" content="记录下需要优化的语句，数据库目前在本机256Mb内存的ubuntu虚拟机的docker中跑着 工作日志查询 工作日志查询">
<meta property="og:locale" content="zh-Hans">
<meta property="og:image" content="http://yoursite.com/uploads/mongodb.jpg">
<meta property="og:updated_time" content="2018-09-17T09:50:30.047Z">
<meta name="twitter:card" content="summary">
<meta name="twitter:title" content="mongo原生查询记录优化之路">
<meta name="twitter:description" content="记录下需要优化的语句，数据库目前在本机256Mb内存的ubuntu虚拟机的docker中跑着 工作日志查询 工作日志查询">
<meta name="twitter:image" content="http://yoursite.com/uploads/mongodb.jpg">



<script type="text/javascript" id="hexo.configurations">
  var NexT = window.NexT || {};
  var CONFIG = {
    root: '/',
    scheme: 'Mist',
    version: '5.1.4',
    sidebar: {"position":"left","display":"post","offset":12,"b2t":false,"scrollpercent":false,"onmobile":false},
    fancybox: true,
    tabs: true,
    motion: {"enable":true,"async":false,"transition":{"post_block":"fadeIn","post_header":"slideDownIn","post_body":"slideDownIn","coll_header":"slideLeftIn","sidebar":"slideUpIn"}},
    duoshuo: {
      userId: '0',
      author: '博主'
    },
    algolia: {
      applicationID: '',
      apiKey: '',
      indexName: '',
      hits: {"per_page":10},
      labels: {"input_placeholder":"Search for Posts","hits_empty":"We didn't find any results for the search: ${query}","hits_stats":"${hits} results found in ${time} ms"}
    }
  };
</script>



  <link rel="canonical" href="http://yoursite.com/2018/09/16/mongo原生查询记录/"/>





  <title>mongo原生查询记录优化之路 | Anke's Technology</title>
  








</head>

<body itemscope itemtype="http://schema.org/WebPage" lang="zh-Hans">

  
  
    
  

  <div class="container sidebar-position-left page-post-detail">
    <div class="headband"></div>

    <a href="https://gitee.com/anke1938" class="github-corner" aria-label="View source on Github"><svg width="80" height="80" viewBox="0 0 250 250" style="fill:#70B7FD; color:#fff; position: absolute; top: 0; border: 0; right: 0;" aria-hidden="true"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg></a><style>.github-corner:hover .octo-arm{animation:octocat-wave 560ms ease-in-out}@keyframes octocat-wave{0%,100%{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}40%,80%{transform:rotate(10deg)}}@media (max-width:500px){.github-corner:hover .octo-arm{animation:none}.github-corner .octo-arm{animation:octocat-wave 560ms ease-in-out}}</style>

    <header id="header" class="header" itemscope itemtype="http://schema.org/WPHeader">
      <div class="header-inner"><div class="site-brand-wrapper">
  <div class="site-meta ">
    

    <div class="custom-logo-site-title">
      <a href="/"  class="brand" rel="start">
        <span class="logo-line-before"><i></i></span>
        <span class="site-title">Anke's Technology</span>
        <span class="logo-line-after"><i></i></span>
      </a>
    </div>
      
        <p class="site-subtitle"></p>
      
  </div>

  <div class="site-nav-toggle">
    <button>
      <span class="btn-bar"></span>
      <span class="btn-bar"></span>
      <span class="btn-bar"></span>
    </button>
  </div>
</div>

<nav class="site-nav">
  

  
    <ul id="menu" class="menu">
      
        
        <li class="menu-item menu-item-home">
          <a href="/" rel="section">
            
              <i class="menu-item-icon fa fa-fw fa-home"></i> <br />
            
            首页
          </a>
        </li>
      
        
        <li class="menu-item menu-item-about">
          <a href="/about/" rel="section">
            
              <i class="menu-item-icon fa fa-fw fa-user"></i> <br />
            
            关于
          </a>
        </li>
      
        
        <li class="menu-item menu-item-tags">
          <a href="/tags/" rel="section">
            
              <i class="menu-item-icon fa fa-fw fa-tags"></i> <br />
            
            标签
          </a>
        </li>
      
        
        <li class="menu-item menu-item-categories">
          <a href="/categories/" rel="section">
            
              <i class="menu-item-icon fa fa-fw fa-th"></i> <br />
            
            分类
          </a>
        </li>
      
        
        <li class="menu-item menu-item-archives">
          <a href="/archives/" rel="section">
            
              <i class="menu-item-icon fa fa-fw fa-archive"></i> <br />
            
            归档
          </a>
        </li>
      

      
        <li class="menu-item menu-item-search">
          
            <a href="javascript:;" class="popup-trigger">
          
            
              <i class="menu-item-icon fa fa-search fa-fw"></i> <br />
            
            搜索
          </a>
        </li>
      
    </ul>
  

  
    <div class="site-search">
      
  <div class="popup search-popup local-search-popup">
  <div class="local-search-header clearfix">
    <span class="search-icon">
      <i class="fa fa-search"></i>
    </span>
    <span class="popup-btn-close">
      <i class="fa fa-times-circle"></i>
    </span>
    <div class="local-search-input-wrapper">
      <input autocomplete="off"
             placeholder="搜索..." spellcheck="false"
             type="text" id="local-search-input">
    </div>
  </div>
  <div id="local-search-result"></div>
</div>



    </div>
  
</nav>



 </div>
    </header>

    <main id="main" class="main">
      <div class="main-inner">
        <div class="content-wrap">
          <div id="content" class="content">
            

  <div id="posts" class="posts-expand">
    

  

  
  
  

  <article class="post post-type-normal" itemscope itemtype="http://schema.org/Article">
  
  
  
  <div class="post-block">
    <link itemprop="mainEntityOfPage" href="http://yoursite.com/2018/09/16/mongo原生查询记录/">

    <span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
      <meta itemprop="name" content="Anke1938">
      <meta itemprop="description" content="">
      <meta itemprop="image" content="/uploads/123.png">
    </span>

    <span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
      <meta itemprop="name" content="Anke's Technology">
    </span>

    
      <header class="post-header">

        
        
          <h1 class="post-title" itemprop="name headline">mongo原生查询记录优化之路</h1>
        

        <div class="post-meta">
          <span class="post-time">
            
              <span class="post-meta-item-icon">
                <i class="fa fa-calendar-o"></i>
              </span>
              
                <span class="post-meta-item-text">发表于</span>
              
              <time title="创建于" itemprop="dateCreated datePublished" datetime="2018-09-16T14:43:42+08:00">
                2018-09-16
              </time>
            

            

            
          </span>

          
            <span class="post-category" >
            
              <span class="post-meta-divider">|</span>
            
              <span class="post-meta-item-icon">
                <i class="fa fa-folder-o"></i>
              </span>
              
                <span class="post-meta-item-text">分类于</span>
              
              
                <span itemprop="about" itemscope itemtype="http://schema.org/Thing">
                  <a href="/categories/学习记录/" itemprop="url" rel="index">
                    <span itemprop="name">学习记录</span>
                  </a>
                </span>

                
                
              
            </span>
          

          
            
              <span class="post-comments-count">
                <span class="post-meta-divider">|</span>
                <span class="post-meta-item-icon">
                  <i class="fa fa-comment-o"></i>
                </span>
                <a href="/2018/09/16/mongo原生查询记录/#comments" itemprop="discussionUrl">
                  <span class="post-comments-count valine-comment-count" data-xid="/2018/09/16/mongo原生查询记录/" itemprop="commentCount"></span>
                </a>
              </span>
            
          

          
          

          
            <span class="post-meta-divider">|</span>
            <span class="page-pv">本文总阅读量
            <span class="busuanzi-value" id="busuanzi_value_page_pv" ></span>次
            </span>
          

          
            <div class="post-wordcount">
              
                
                <span class="post-meta-item-icon">
                  <i class="fa fa-file-word-o"></i>
                </span>
                
                  <span class="post-meta-item-text">字数统计&#58;</span>
                
                <span title="字数统计">
                  620
                </span>
              

              
                <span class="post-meta-divider">|</span>
              

              
                <span class="post-meta-item-icon">
                  <i class="fa fa-clock-o"></i>
                </span>
                
                  <span class="post-meta-item-text">阅读时长 &asymp;</span>
                
                <span title="阅读时长">
                  3
                </span>
              
            </div>
          

          

        </div>
      </header>
    

    
    
    
    <div class="post-body" itemprop="articleBody">

      
      

      
        <p><img src="/uploads/mongodb.jpg" alt="avatar"></p>
<h4 id="记录下需要优化的语句，数据库目前在本机256Mb内存的ubuntu虚拟机的docker中跑着"><a href="#记录下需要优化的语句，数据库目前在本机256Mb内存的ubuntu虚拟机的docker中跑着" class="headerlink" title="记录下需要优化的语句，数据库目前在本机256Mb内存的ubuntu虚拟机的docker中跑着"></a>记录下需要优化的语句，数据库目前在本机256Mb内存的ubuntu虚拟机的docker中跑着</h4><ul>
<li><strong>工作日志查询</strong></li>
<li><strong>工作日志查询</strong></li>
</ul>
<a id="more"></a>
<h4 id="直接进入服务器shell-执行操作的命令（因为图形化工具里有很多不方便的地方）"><a href="#直接进入服务器shell-执行操作的命令（因为图形化工具里有很多不方便的地方）" class="headerlink" title="直接进入服务器shell 执行操作的命令（因为图形化工具里有很多不方便的地方）"></a>直接进入服务器shell 执行操作的命令（因为图形化工具里有很多不方便的地方）</h4><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">1.登录mongo  mongo --username --password --authenticationDatabase --hose --port</span><br><span class="line">2.选择数据库  use pzx_online</span><br><span class="line">3.干活</span><br></pre></td></tr></table></figure>
<h5 id="给表中所有的数据添加一个字段来表示更新的时间"><a href="#给表中所有的数据添加一个字段来表示更新的时间" class="headerlink" title="给表中所有的数据添加一个字段来表示更新的时间"></a>给表中所有的数据添加一个字段来表示更新的时间</h5><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">db.qRBigCodeInfo.update(&#123;&#125;, &#123;$set: &#123;&apos;modifyAt&apos;:ISODate(&quot;2010-05-16T09:45:45.356Z&quot;)&#125;&#125;, &#123;multi: true&#125;)</span><br></pre></td></tr></table></figure>
<h5 id="将时间改为对应的userRecords中的正确的时间-由于使用js-执行会很慢"><a href="#将时间改为对应的userRecords中的正确的时间-由于使用js-执行会很慢" class="headerlink" title="将时间改为对应的userRecords中的正确的时间,由于使用js,执行会很慢"></a>将时间改为对应的userRecords中的正确的时间,由于使用js,执行会很慢</h5><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">db.qRCodeInfo.find(&#123;$where:&quot;this.corpRecords.length&gt;= 1&quot;&#125;).forEach(</span><br><span class="line">   function(item)&#123;      </span><br><span class="line">        var len = item.corpRecords[0].userRecords.length</span><br><span class="line">        db.qRCodeInfo.update(&#123;&quot;_id&quot;:item._id&#125;,&#123;&quot;$set&quot;:&#123;&quot;modifyAt&quot;:item.corpRecords[0].userRecords[len-1].createAt&#125;&#125;,false,true) </span><br><span class="line">    &#125;</span><br><span class="line">)</span><br></pre></td></tr></table></figure>
<h4 id="此语句是为了查询工作日志"><a href="#此语句是为了查询工作日志" class="headerlink" title="此语句是为了查询工作日志"></a>此语句是为了查询工作日志</h4><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br></pre></td><td class="code"><pre><span class="line">db.runCommand(&#123;</span><br><span class="line">   aggregate: &apos;qRCodeInfo&apos;,</span><br><span class="line">    pipeline:[</span><br><span class="line">        &#123; $match: &#123;  </span><br><span class="line">            //原来是没有modifyAt 这个时间的，在每次对着些数据进行操作的时候，会更新这个时间</span><br><span class="line">            &quot;modifyAt&quot; : &#123; $gte: ISODate(&quot;2018-09-07T16:00:00.000Z&quot;),$lte: ISODate(&quot;2018-09-08T16:00:00.000Z&quot;),&#125; ,</span><br><span class="line">            &quot;corpRecords&quot; : &#123; $elemMatch : &#123;</span><br><span class="line">            &quot;corp._id&quot; : ObjectId(&quot;5930c15fe13b1f7a1afc9c07&quot;),</span><br><span class="line">            &quot;userRecords&quot; : &#123; $elemMatch :&#123;</span><br><span class="line">                &quot;createAt&quot; : &#123; $gte: ISODate(&quot;2018-09-07T16:00:00.000Z&quot;)&#125; ,</span><br><span class="line">                &quot;action&quot; :  &#123; $in : [ &quot;OutStock&quot; ,&quot;InStock&quot; , &quot;Handling&quot; ] &#125;</span><br><span class="line">             &#125; &#125;</span><br><span class="line">        &#125; &#125; &#125; &#125; ,</span><br><span class="line">        &#123; $project:  &#123;</span><br><span class="line">            corpRecords: &#123; $arrayElemAt: [ &#123; $filter : &#123;</span><br><span class="line">                    input : &quot;$corpRecords&quot;,</span><br><span class="line">                    as: &quot;item&quot;,</span><br><span class="line">                    cond: &#123; $and: [</span><br><span class="line">                        &#123; $eq: [ &quot;$$item.corp._id&quot; ,   ObjectId(&quot;5930c15fe13b1f7a1afc9c07&quot;) ]&#125;</span><br><span class="line">                    ]&#125;</span><br><span class="line">            &#125; &#125; , 0 ] &#125;</span><br><span class="line">        &#125; &#125;,</span><br><span class="line">        &#123; $project:  &#123;</span><br><span class="line">            userRecords: &#123;  $filter : &#123;</span><br><span class="line">                    input : &quot;$corpRecords.userRecords&quot;,</span><br><span class="line">                    as: &quot;item&quot;,</span><br><span class="line">                    cond: &#123; $and: [</span><br><span class="line">                          &#123; $gte: [ &quot;$$item.createAt&quot; ,  ISODate(&quot;2018-09-07T16:00:00.000Z&quot;) ] &#125; ,</span><br><span class="line">                          &#123; $in: [ &quot;$$item.action&quot; ,     [ &quot;OutStock&quot; ,&quot;InStock&quot; ,&quot;Handling&quot; ]  ] &#125;</span><br><span class="line">                    ] &#125;</span><br><span class="line">            &#125; &#125;</span><br><span class="line">        &#125; &#125;</span><br><span class="line">        ,&#123; $project : &#123;</span><br><span class="line">               userRecords : &#123;  $setIntersection: [  &#123; $map:  &#123;</span><br><span class="line">                       input: &quot;$userRecords&quot;,</span><br><span class="line">                       as: &quot;item&quot;,</span><br><span class="line">                       in: &#123;</span><br><span class="line">                           year: &#123;$year: &quot;$$item.createAt&quot; &#125; ,</span><br><span class="line">                           day:  &#123; $dayOfYear : &quot;$$item.createAt&quot; &#125; ,</span><br><span class="line">                           action: &quot;$$item.action&quot;</span><br><span class="line">                       &#125;</span><br><span class="line">               &#125; &#125; ] &#125;</span><br><span class="line">        &#125; &#125;</span><br><span class="line">        , &#123; $unwind :  &quot;$userRecords&quot;   &#125;</span><br><span class="line">        , &#123; $group : &#123;</span><br><span class="line">                _id:   &quot;$userRecords&quot;  ,</span><br><span class="line">                count: &#123; $sum: 1&#125;</span><br><span class="line">         &#125; &#125;</span><br><span class="line">    ]</span><br><span class="line">&#125; )</span><br></pre></td></tr></table></figure>
<ul>
<li><strong>上面的语句耗时10s+,数据量目前为225w（只查一天）</strong></li>
</ul>
<hr>
<h4 id="此语句为工作量统计"><a href="#此语句为工作量统计" class="headerlink" title="此语句为工作量统计"></a>此语句为工作量统计</h4><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br></pre></td><td class="code"><pre><span class="line"></span><br><span class="line">db.runCommand(&#123; aggregate: &quot;qRCodeInfo&quot;,pipeline: [</span><br><span class="line"></span><br><span class="line">     &#123; $match: &#123;</span><br><span class="line">    &quot;product._id&quot;:ObjectId(&quot;5a976c52e13b1f620c371d0c&quot;),</span><br><span class="line">    &quot;corp._id&quot;:ObjectId(&quot;5930c15fe13b1f7a1afc9c07&quot;), &quot;corpRecords.1&quot;:&#123; $exists : 1 &#125;,</span><br><span class="line">    </span><br><span class="line">&#125;&#125;,</span><br><span class="line">    &#123;</span><br><span class="line">        $group : &#123;</span><br><span class="line">            _id: &#123; $slice: [ &quot;$corpRecords.corp&quot; , 1, 1 ] &#125; ,</span><br><span class="line">            startAt: &#123; $min: &#123; $arrayElemAt: [ &#123; $arrayElemAt: [ &quot;$corpRecords.userRecords.createAt&quot; , 1 ] &#125; , 0 ] &#125;    &#125; ,</span><br><span class="line">            endAt: &#123; $max: &#123; $arrayElemAt: [ &#123; $arrayElemAt: [ &quot;$corpRecords.userRecords.createAt&quot; , 1 ] &#125; , -1 ] &#125;    &#125; ,</span><br><span class="line">            sum:&#123; $sum : 1 &#125;</span><br><span class="line">        &#125;</span><br><span class="line">     &#125;</span><br><span class="line"></span><br><span class="line">] &#125; )</span><br></pre></td></tr></table></figure>
<hr>
<h4 id="库存统计查询"><a href="#库存统计查询" class="headerlink" title="库存统计查询"></a>库存统计查询</h4><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br></pre></td><td class="code"><pre><span class="line"> &#123;</span><br><span class="line">    aggregate: &quot;qRCodeInfo&quot;,</span><br><span class="line">    pipeline:</span><br><span class="line">[</span><br><span class="line">    &#123; $match: &#123;</span><br><span class="line">           &quot;corp._id&quot; :  ObjectId(&quot;5930c15fe13b1f7a1afc9c07&quot;),</span><br><span class="line">            &quot;product._id&quot;:ObjectId(&quot;5a976c52e13b1f620c371d0c&quot;),</span><br><span class="line">             &quot;corpRecords&quot;:&#123;&quot;$elemMatch&quot;:&#123;</span><br><span class="line">                 &quot;corp._id&quot;: ObjectId(&quot;5930c15fe13b1f7a1afc9c07&quot;),</span><br><span class="line">                 &quot;userRecords.action&quot; : &quot;InStock&quot;</span><br><span class="line">                &#125;  &#125;</span><br><span class="line">     &#125;  &#125;,</span><br><span class="line">     &#123; $project: &#123;</span><br><span class="line">           corpRecord : &#123;  $arrayElemAt : [ &#123; $filter : &#123;</span><br><span class="line">               input : &quot;$corpRecords&quot; ,</span><br><span class="line">               as : &quot;item&quot; ,</span><br><span class="line">               cond: &#123;  $eq: [ &quot;$$item.corp._id&quot; ,ObjectId(&quot;5930c15fe13b1f7a1afc9c07&quot;)]   &#125;</span><br><span class="line">        &#125; &#125;, 0]  &#125;</span><br><span class="line">     &#125; &#125;</span><br><span class="line">      , &#123; $project: &#123; &quot;corpRecord&quot; : 1 ,</span><br><span class="line">           outStockCount : &#123;  $size:&#123;  $filter : &#123;</span><br><span class="line">               input : &quot;$corpRecord.userRecords&quot; ,</span><br><span class="line">               as : &quot;item&quot; ,</span><br><span class="line">               cond: &#123;  $eq: [ &quot;$$item.action&quot; ,&quot;OutStock&quot; ]   &#125;</span><br><span class="line">        &#125; &#125; &#125;</span><br><span class="line">     &#125; &#125;</span><br><span class="line"></span><br><span class="line">     , &#123; $project: &#123; &quot;corpRecord&quot; : 1 ,</span><br><span class="line"></span><br><span class="line">           &quot;outStockCount&quot;: &#123; $cond: [ &#123; $eq:[ &quot;$outStockCount&quot; , 0] &#125; , 0 ,1 ] &#125;</span><br><span class="line">       &#125; &#125;</span><br><span class="line">     , &#123; $group : &#123;</span><br><span class="line">         _id: 1,</span><br><span class="line">         count: &#123; $sum: 1&#125;,</span><br><span class="line">         outCount: &#123; $sum: &quot;$outStockCount&quot; &#125;</span><br><span class="line">     &#125;&#125;</span><br><span class="line">]</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
      
    </div>
    
    
    

    

    
      <div>
        <div style="padding: 10px 0; margin: 20px auto; width: 90%; text-align: center;">
  <div>坚持分享与记录,欢迎打赏</div>
  <button id="rewardButton" disable="enable" onclick="var qr = document.getElementById('QR'); if (qr.style.display === 'none') {qr.style.display='block';} else {qr.style.display='none'}">
    <span>打赏</span>
  </button>
  <div id="QR" style="display: none;">

    
      <div id="wechat" style="display: inline-block">
        <img id="wechat_qr" src="/uploads/wechart.png" alt="Anke1938 微信支付"/>
        <p>微信支付</p>
      </div>
    

    
      <div id="alipay" style="display: inline-block">
        <img id="alipay_qr" src="/uploads/alipay.jpg" alt="Anke1938 支付宝"/>
        <p>支付宝</p>
      </div>
    

    
      <div id="bitcoin" style="display: inline-block">
        <img id="bitcoin_qr" src="/uploads/imtoken.png" alt="Anke1938 ETH钱包地址"/>
        <p>ETH钱包地址</p>
      </div>
    

  </div>
</div>

      </div>
    

    

    <footer class="post-footer">
      
        <div class="post-tags">
          
            <a href="/tags/Docker/" rel="tag"># Docker</a>
          
            <a href="/tags/学习记录/" rel="tag"># 学习记录</a>
          
            <a href="/tags/Mongo/" rel="tag"># Mongo</a>
          
        </div>
      

      
      
      

      
        <div class="post-nav">
          <div class="post-nav-next post-nav-item">
            
              <a href="/2018/09/13/Mongo的explain/" rel="next" title="Mongo的explain">
                <i class="fa fa-chevron-left"></i> Mongo的explain
              </a>
            
          </div>

          <span class="post-nav-divider"></span>

          <div class="post-nav-prev post-nav-item">
            
              <a href="/2018/09/25/Ubuntu修改密码/" rel="prev" title="Ubuntu修改密码">
                Ubuntu修改密码 <i class="fa fa-chevron-right"></i>
              </a>
            
          </div>
        </div>
      

      
      
    </footer>
  </div>
  
  
  
  </article>



    <div class="post-spread">
      
    </div>
  </div>


          </div>
          


          

  
    <div class="comments" id="comments">
    </div>
  



        </div>
        
          
  
  <div class="sidebar-toggle">
    <div class="sidebar-toggle-line-wrap">
      <span class="sidebar-toggle-line sidebar-toggle-line-first"></span>
      <span class="sidebar-toggle-line sidebar-toggle-line-middle"></span>
      <span class="sidebar-toggle-line sidebar-toggle-line-last"></span>
    </div>
  </div>

  <aside id="sidebar" class="sidebar">
    
    <div class="sidebar-inner">

      

      
        <ul class="sidebar-nav motion-element">
          <li class="sidebar-nav-toc sidebar-nav-active" data-target="post-toc-wrap">
            文章目录
          </li>
          <li class="sidebar-nav-overview" data-target="site-overview-wrap">
            站点概览
          </li>
        </ul>
      

      <section class="site-overview-wrap sidebar-panel">
        <div class="site-overview">
          <div class="site-author motion-element" itemprop="author" itemscope itemtype="http://schema.org/Person">
            
              <img class="site-author-image" itemprop="image"
                src="/uploads/123.png"
                alt="Anke1938" />
            
              <p class="site-author-name" itemprop="name">Anke1938</p>
              <p class="site-description motion-element" itemprop="description">一个小站</p>
          </div>

          <nav class="site-state motion-element">

            
              <div class="site-state-item site-state-posts">
              
                <a href="/archives/">
              
                  <span class="site-state-item-count">17</span>
                  <span class="site-state-item-name">日志</span>
                </a>
              </div>
            

            
              
              
              <div class="site-state-item site-state-categories">
                <a href="/categories/index.html">
                  <span class="site-state-item-count">20</span>
                  <span class="site-state-item-name">分类</span>
                </a>
              </div>
            

            
              
              
              <div class="site-state-item site-state-tags">
                <a href="/tags/index.html">
                  <span class="site-state-item-count">25</span>
                  <span class="site-state-item-name">标签</span>
                </a>
              </div>
            

          </nav>

          

          
            <div class="links-of-author motion-element">
                
                  <span class="links-of-author-item">
                    <a href="https://gitee.com/anke1938" target="_blank" title="GitHub">
                      
                        <i class="fa fa-fw fa-github"></i>GitHub</a>
                  </span>
                
                  <span class="links-of-author-item">
                    <a href="https://www.jianshu.com/u/e9c6ed04fc97" target="_blank" title="JianShu">
                      
                        <i class="fa fa-fw fa-google"></i>JianShu</a>
                  </span>
                
            </div>
          

          
          

          
          

          

        </div>
      </section>

      
      <!--noindex-->
        <section class="post-toc-wrap motion-element sidebar-panel sidebar-panel-active">
          <div class="post-toc">

            
              
            

            
              <div class="post-toc-content"><ol class="nav"><li class="nav-item nav-level-4"><a class="nav-link" href="#记录下需要优化的语句，数据库目前在本机256Mb内存的ubuntu虚拟机的docker中跑着"><span class="nav-number">1.</span> <span class="nav-text">记录下需要优化的语句，数据库目前在本机256Mb内存的ubuntu虚拟机的docker中跑着</span></a></li><li class="nav-item nav-level-4"><a class="nav-link" href="#直接进入服务器shell-执行操作的命令（因为图形化工具里有很多不方便的地方）"><span class="nav-number">2.</span> <span class="nav-text">直接进入服务器shell 执行操作的命令（因为图形化工具里有很多不方便的地方）</span></a><ol class="nav-child"><li class="nav-item nav-level-5"><a class="nav-link" href="#给表中所有的数据添加一个字段来表示更新的时间"><span class="nav-number">2.1.</span> <span class="nav-text">给表中所有的数据添加一个字段来表示更新的时间</span></a></li><li class="nav-item nav-level-5"><a class="nav-link" href="#将时间改为对应的userRecords中的正确的时间-由于使用js-执行会很慢"><span class="nav-number">2.2.</span> <span class="nav-text">将时间改为对应的userRecords中的正确的时间,由于使用js,执行会很慢</span></a></li></ol></li><li class="nav-item nav-level-4"><a class="nav-link" href="#此语句是为了查询工作日志"><span class="nav-number">3.</span> <span class="nav-text">此语句是为了查询工作日志</span></a></li><li class="nav-item nav-level-4"><a class="nav-link" href="#此语句为工作量统计"><span class="nav-number">4.</span> <span class="nav-text">此语句为工作量统计</span></a></li><li class="nav-item nav-level-4"><a class="nav-link" href="#库存统计查询"><span class="nav-number">5.</span> <span class="nav-text">库存统计查询</span></a></li></ol></div>
            

          </div>
        </section>
      <!--/noindex-->
      

      

    </div>
  </aside>


        
      </div>
    </main>

    <footer id="footer" class="footer">
      <div class="footer-inner">
        <div class="copyright">&copy; <span itemprop="copyrightYear">2018</span>
  <span class="with-love">
    <i class="fa fa-user"></i>
  </span>
  <span class="author" itemprop="copyrightHolder">Anke1938</span>

  
</div>

<!--
  <div class="powered-by">由 <a class="theme-link" target="_blank" href="https://hexo.io">Hexo</a> 强力驱动</div>



  <span class="post-meta-divider">|</span>



  <div class="theme-info">主题 &mdash; <a class="theme-link" target="_blank" href="https://github.com/iissnan/hexo-theme-next">NexT.Mist</a> v5.1.4</div>
-->


<p>Hosted by <a href="https://pages.coding.me" style="font-weight: bold">Coding Pages</a></p>

        
<div class="busuanzi-count">
  <script async src="https://dn-lbstatics.qbox.me/busuanzi/2.3/busuanzi.pure.mini.js"></script>

  
    <span class="site-uv">
      本站访客数
      <span class="busuanzi-value" id="busuanzi_value_site_uv"></span>
      人次
    </span>
  

  
    <span class="site-pv">
      本站总访问量
      <span class="busuanzi-value" id="busuanzi_value_site_pv"></span>
      次
    </span>
  
</div>








        
      </div>
    </footer>

    
      <div class="back-to-top">
        <i class="fa fa-arrow-up"></i>
        
      </div>
    

    

  </div>

  

<script type="text/javascript">
  if (Object.prototype.toString.call(window.Promise) !== '[object Function]') {
    window.Promise = null;
  }
</script>









  












  
  
    <script type="text/javascript" src="/lib/jquery/index.js?v=2.1.3"></script>
  

  
  
    <script type="text/javascript" src="/lib/fastclick/lib/fastclick.min.js?v=1.0.6"></script>
  

  
  
    <script type="text/javascript" src="/lib/jquery_lazyload/jquery.lazyload.js?v=1.9.7"></script>
  

  
  
    <script type="text/javascript" src="/lib/velocity/velocity.min.js?v=1.2.1"></script>
  

  
  
    <script type="text/javascript" src="/lib/velocity/velocity.ui.min.js?v=1.2.1"></script>
  

  
  
    <script type="text/javascript" src="/lib/fancybox/source/jquery.fancybox.pack.js?v=2.1.5"></script>
  


  


  <script type="text/javascript" src="/js/src/utils.js?v=5.1.4"></script>

  <script type="text/javascript" src="/js/src/motion.js?v=5.1.4"></script>



  
  

  
  <script type="text/javascript" src="/js/src/scrollspy.js?v=5.1.4"></script>
<script type="text/javascript" src="/js/src/post-details.js?v=5.1.4"></script>



  


  <script type="text/javascript" src="/js/src/bootstrap.js?v=5.1.4"></script>



  


  




	





  





  










  <script src="//cdn1.lncld.net/static/js/3.0.4/av-min.js"></script>
  <script src="//unpkg.com/valine/dist/Valine.min.js"></script>
  
  <script type="text/javascript">
    var GUEST = ['nick','mail','link'];
    var guest = 'nick,mail,link';
    guest = guest.split(',').filter(item=>{
      return GUEST.indexOf(item)>-1;
    });
    new Valine({
        el: '#comments' ,
        verify: false,
        notify: false,
        appId: 'leku8acMEYc1eJGD3zjFeD9V-gzGzoHsz',
        appKey: '7vRrDkNtQacaWKcPe3lRh9ok',
        placeholder: 'ヾﾉ≧∀≦)o来啊，快活啊!',
        avatar:'mm',
        guest_info:guest,
        pageSize:'10' || 10,
    });
  </script>



  

  <script type="text/javascript">
    // Popup Window;
    var isfetched = false;
    var isXml = true;
    // Search DB path;
    var search_path = "search.xml";
    if (search_path.length === 0) {
      search_path = "search.xml";
    } else if (/json$/i.test(search_path)) {
      isXml = false;
    }
    var path = "/" + search_path;
    // monitor main search box;

    var onPopupClose = function (e) {
      $('.popup').hide();
      $('#local-search-input').val('');
      $('.search-result-list').remove();
      $('#no-result').remove();
      $(".local-search-pop-overlay").remove();
      $('body').css('overflow', '');
    }

    function proceedsearch() {
      $("body")
        .append('<div class="search-popup-overlay local-search-pop-overlay"></div>')
        .css('overflow', 'hidden');
      $('.search-popup-overlay').click(onPopupClose);
      $('.popup').toggle();
      var $localSearchInput = $('#local-search-input');
      $localSearchInput.attr("autocapitalize", "none");
      $localSearchInput.attr("autocorrect", "off");
      $localSearchInput.focus();
    }

    // search function;
    var searchFunc = function(path, search_id, content_id) {
      'use strict';

      // start loading animation
      $("body")
        .append('<div class="search-popup-overlay local-search-pop-overlay">' +
          '<div id="search-loading-icon">' +
          '<i class="fa fa-spinner fa-pulse fa-5x fa-fw"></i>' +
          '</div>' +
          '</div>')
        .css('overflow', 'hidden');
      $("#search-loading-icon").css('margin', '20% auto 0 auto').css('text-align', 'center');

      $.ajax({
        url: path,
        dataType: isXml ? "xml" : "json",
        async: true,
        success: function(res) {
          // get the contents from search data
          isfetched = true;
          $('.popup').detach().appendTo('.header-inner');
          var datas = isXml ? $("entry", res).map(function() {
            return {
              title: $("title", this).text(),
              content: $("content",this).text(),
              url: $("url" , this).text()
            };
          }).get() : res;
          var input = document.getElementById(search_id);
          var resultContent = document.getElementById(content_id);
          var inputEventFunction = function() {
            var searchText = input.value.trim().toLowerCase();
            var keywords = searchText.split(/[\s\-]+/);
            if (keywords.length > 1) {
              keywords.push(searchText);
            }
            var resultItems = [];
            if (searchText.length > 0) {
              // perform local searching
              datas.forEach(function(data) {
                var isMatch = false;
                var hitCount = 0;
                var searchTextCount = 0;
                var title = data.title.trim();
                var titleInLowerCase = title.toLowerCase();
                var content = data.content.trim().replace(/<[^>]+>/g,"");
                var contentInLowerCase = content.toLowerCase();
                var articleUrl = decodeURIComponent(data.url);
                var indexOfTitle = [];
                var indexOfContent = [];
                // only match articles with not empty titles
                if(title != '') {
                  keywords.forEach(function(keyword) {
                    function getIndexByWord(word, text, caseSensitive) {
                      var wordLen = word.length;
                      if (wordLen === 0) {
                        return [];
                      }
                      var startPosition = 0, position = [], index = [];
                      if (!caseSensitive) {
                        text = text.toLowerCase();
                        word = word.toLowerCase();
                      }
                      while ((position = text.indexOf(word, startPosition)) > -1) {
                        index.push({position: position, word: word});
                        startPosition = position + wordLen;
                      }
                      return index;
                    }

                    indexOfTitle = indexOfTitle.concat(getIndexByWord(keyword, titleInLowerCase, false));
                    indexOfContent = indexOfContent.concat(getIndexByWord(keyword, contentInLowerCase, false));
                  });
                  if (indexOfTitle.length > 0 || indexOfContent.length > 0) {
                    isMatch = true;
                    hitCount = indexOfTitle.length + indexOfContent.length;
                  }
                }

                // show search results

                if (isMatch) {
                  // sort index by position of keyword

                  [indexOfTitle, indexOfContent].forEach(function (index) {
                    index.sort(function (itemLeft, itemRight) {
                      if (itemRight.position !== itemLeft.position) {
                        return itemRight.position - itemLeft.position;
                      } else {
                        return itemLeft.word.length - itemRight.word.length;
                      }
                    });
                  });

                  // merge hits into slices

                  function mergeIntoSlice(text, start, end, index) {
                    var item = index[index.length - 1];
                    var position = item.position;
                    var word = item.word;
                    var hits = [];
                    var searchTextCountInSlice = 0;
                    while (position + word.length <= end && index.length != 0) {
                      if (word === searchText) {
                        searchTextCountInSlice++;
                      }
                      hits.push({position: position, length: word.length});
                      var wordEnd = position + word.length;

                      // move to next position of hit

                      index.pop();
                      while (index.length != 0) {
                        item = index[index.length - 1];
                        position = item.position;
                        word = item.word;
                        if (wordEnd > position) {
                          index.pop();
                        } else {
                          break;
                        }
                      }
                    }
                    searchTextCount += searchTextCountInSlice;
                    return {
                      hits: hits,
                      start: start,
                      end: end,
                      searchTextCount: searchTextCountInSlice
                    };
                  }

                  var slicesOfTitle = [];
                  if (indexOfTitle.length != 0) {
                    slicesOfTitle.push(mergeIntoSlice(title, 0, title.length, indexOfTitle));
                  }

                  var slicesOfContent = [];
                  while (indexOfContent.length != 0) {
                    var item = indexOfContent[indexOfContent.length - 1];
                    var position = item.position;
                    var word = item.word;
                    // cut out 100 characters
                    var start = position - 20;
                    var end = position + 80;
                    if(start < 0){
                      start = 0;
                    }
                    if (end < position + word.length) {
                      end = position + word.length;
                    }
                    if(end > content.length){
                      end = content.length;
                    }
                    slicesOfContent.push(mergeIntoSlice(content, start, end, indexOfContent));
                  }

                  // sort slices in content by search text's count and hits' count

                  slicesOfContent.sort(function (sliceLeft, sliceRight) {
                    if (sliceLeft.searchTextCount !== sliceRight.searchTextCount) {
                      return sliceRight.searchTextCount - sliceLeft.searchTextCount;
                    } else if (sliceLeft.hits.length !== sliceRight.hits.length) {
                      return sliceRight.hits.length - sliceLeft.hits.length;
                    } else {
                      return sliceLeft.start - sliceRight.start;
                    }
                  });

                  // select top N slices in content

                  var upperBound = parseInt('1');
                  if (upperBound >= 0) {
                    slicesOfContent = slicesOfContent.slice(0, upperBound);
                  }

                  // highlight title and content

                  function highlightKeyword(text, slice) {
                    var result = '';
                    var prevEnd = slice.start;
                    slice.hits.forEach(function (hit) {
                      result += text.substring(prevEnd, hit.position);
                      var end = hit.position + hit.length;
                      result += '<b class="search-keyword">' + text.substring(hit.position, end) + '</b>';
                      prevEnd = end;
                    });
                    result += text.substring(prevEnd, slice.end);
                    return result;
                  }

                  var resultItem = '';

                  if (slicesOfTitle.length != 0) {
                    resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + highlightKeyword(title, slicesOfTitle[0]) + "</a>";
                  } else {
                    resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + title + "</a>";
                  }

                  slicesOfContent.forEach(function (slice) {
                    resultItem += "<a href='" + articleUrl + "'>" +
                      "<p class=\"search-result\">" + highlightKeyword(content, slice) +
                      "...</p>" + "</a>";
                  });

                  resultItem += "</li>";
                  resultItems.push({
                    item: resultItem,
                    searchTextCount: searchTextCount,
                    hitCount: hitCount,
                    id: resultItems.length
                  });
                }
              })
            };
            if (keywords.length === 1 && keywords[0] === "") {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-search fa-5x" /></div>'
            } else if (resultItems.length === 0) {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-frown-o fa-5x" /></div>'
            } else {
              resultItems.sort(function (resultLeft, resultRight) {
                if (resultLeft.searchTextCount !== resultRight.searchTextCount) {
                  return resultRight.searchTextCount - resultLeft.searchTextCount;
                } else if (resultLeft.hitCount !== resultRight.hitCount) {
                  return resultRight.hitCount - resultLeft.hitCount;
                } else {
                  return resultRight.id - resultLeft.id;
                }
              });
              var searchResultList = '<ul class=\"search-result-list\">';
              resultItems.forEach(function (result) {
                searchResultList += result.item;
              })
              searchResultList += "</ul>";
              resultContent.innerHTML = searchResultList;
            }
          }

          if ('auto' === 'auto') {
            input.addEventListener('input', inputEventFunction);
          } else {
            $('.search-icon').click(inputEventFunction);
            input.addEventListener('keypress', function (event) {
              if (event.keyCode === 13) {
                inputEventFunction();
              }
            });
          }

          // remove loading animation
          $(".local-search-pop-overlay").remove();
          $('body').css('overflow', '');

          proceedsearch();
        }
      });
    }

    // handle and trigger popup window;
    $('.popup-trigger').click(function(e) {
      e.stopPropagation();
      if (isfetched === false) {
        searchFunc(path, 'local-search-input', 'local-search-result');
      } else {
        proceedsearch();
      };
    });

    $('.popup-btn-close').click(onPopupClose);
    $('.popup').click(function(e){
      e.stopPropagation();
    });
    $(document).on('keyup', function (event) {
      var shouldDismissSearchPopup = event.which === 27 &&
        $('.search-popup').is(':visible');
      if (shouldDismissSearchPopup) {
        onPopupClose();
      }
    });
  </script>





  

  

  

  
  

  

  

  

</body>
</html>
